Mixer assembly

Abstract

The utility model discloses a mixer assembly, which belongs to the technical field of mixers and comprises an air inlet cavity arranged on a mixer body and used for intercooled air to flow in, a jacket is arranged on the outer wall of the mixer body, and the jacket is provided with an inlet for a heating medium to flow in and an outlet for the heating medium to flow out; a thermostat is arranged on the mixer, a valve element inductor of the thermostat is arranged in an air inlet cavity, a valve of the thermostat is arranged at an inlet of the jacket and used for controlling the opening and closing of the inlet, the thermostat can automatically control the opening and closing of a heating pipeline according to the temperature of intercooled air, and the heating pipeline is automatically opened to heat the mixer to prevent freezing in cold days. The manual operation of customers is avoided, the customer satisfaction is improved, the heating pipeline is automatically disconnected in hot days, the heating of intercooled air is avoided, and the performance of the engine is improved; on-off of pipelines is controlled through a pure mechanical structure, and the structure is reliable and durable; and the jacket and the thermostat are integrated in the mixer assembly, so that the number of parts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mixer, concretely relates to a mixer assembly. BACKGROUND

[0002] In order to realize the national six emissions, more and more vehicles begin to be equipped with exhaust gas recycle (Exhaust Gas Recycle, for short EGR) system, can the engine part exhaust gas is introduced into the engine intake system again, make this part exhaust gas participate in combustion, can reduce the emission of nitrogen oxides, improve vehicle emission level.For the engine with EGR function, EGR exhaust gas contains a large amount of water after engine combustion.In cold winter, the temperature of engine after cooling air is very low, EGR exhaust gas will precipitate a lot of water in the mixing process, and then freeze and block the mixer.The engine intake decreases after the mixer is blocked, and then the power is insufficient.

[0003] To solve the problem that the mixer is easy to freeze in winter, the prior art generally adds a valve on the mixer heating water circuit, which is manually opened and closed according to the weather;Or there is no valve, and the water circuit always has water circulation.For the structure without water valve, the summer heating water circuit will heat the engine intake, causing the intake temperature to rise, affecting the engine performance;And for the structure with water valve, the customer manually opens and closes the water valve, which is complicated and has poor customer experience. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a mixer assembly, which automatically controls the on-off of the heating pipe, avoids manual operation of the customer, improves customer satisfaction and improves engine performance.

[0005] To solve the above technical problems, the technical scheme of the utility model is:

[0006] A mixer assembly, comprising an air intake cavity provided on a mixer body for the flow of air after cooling, the outer wall of the mixer body is provided with a jacket, the jacket has an inlet for the flow of heating medium and an outlet for the flow;The mixer is provided with a thermostat, the valve core sensing body of the thermostat is arranged in the air intake cavity, and the valve of the thermostat is arranged at the inlet of the jacket for controlling the on-off of the inlet.

[0007] Further, the jacket is an independent cavity formed on the surface of the mixer body.

[0008] Further, the jacket is a water jacket.

[0009] Further, the mixer body is provided with a waste gas mixing cavity for the flow of waste gas, and the waste gas mixing cavity is communicated with the air intake cavity.

[0010] Furthermore, the mixer body is provided with a gas mixing chamber for gas to flow into, and the gas mixing chamber is communicated with the air intake chamber.

[0011] Furthermore, the mixer body is provided with a mixed gas outlet cavity, and the mixed gas outlet cavity is communicated with the air inlet cavity.

[0012] After adopting the above technical solution, the beneficial effects of the utility model are:

[0013] The mixer assembly of the utility model includes an air intake chamber arranged on the mixer body for the inflow of intercooled air, the outer wall of the mixer body is provided with a jacket, and the jacket has an inlet for the inflow and an outlet for the outflow of the heating medium; a thermostat is provided on the mixer, the valve core sensor of the thermostat is provided in the air intake chamber, and the valve of the thermostat is provided at the inlet of the jacket for controlling the on-off of the inlet, and the thermostat can automatically control the on-off of the heating pipeline according to the temperature of the intercooled air. When the weather is cold, the heating pipeline is automatically opened to heat the mixer to prevent freezing, avoiding manual operation of the customer and improving customer satisfaction. When the weather is hot, the heating pipeline is automatically disconnected to avoid heating of the intercooled air and improving engine performance; the on-off of the pipeline is controlled by a purely mechanical structure, and the structure is reliable and durable; and the jacket and thermostat are integrated in the mixer assembly, reducing the number of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of the mixer assembly of the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the mixed gas assembly of the utility model;

[0016] In the figure, 1-mixer body, 11-air inlet chamber, 12-gas mixing chamber, 13-exhaust gas mixing chamber, 14-mixed gas outlet chamber, 2-jacket, 21-inlet, 22-outlet, 3-thermostat, 31-thermostat body, 32-valve, 33-valve core, 34-valve core sensor. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as limiting the scope of protection of the present invention.

[0018] like Figure 1 and Figure 2As shown in the drawings, a mixer assembly includes an air inlet cavity 11 provided on a mixer body 1 for the inflow of intercooled air, and an outer wall of the mixer body 1 is provided with a jacket 2 having an inlet 21 for the inflow of heating medium and an outlet 22 for the outflow of heating medium.

[0019] Specifically, the jacket 2 is an independent cavity integrally formed on the surface of the mixer body 1, and after the inflow of heating medium, the jacket 2 can be used to heat the mixer body 1, thereby increasing the temperature of the gas in the mixer body 1 to avoid icing. The mixer assembly integrates the jacket 2 and the thermostat 3, thereby reducing the number of components. In the embodiment, the jacket 2 is a water jacket, and the inflow and outflow of water are both from the engine.

[0020] As shown in the drawings, Figure 2 The mixer is provided with a thermostat 3, and the thermostat 3 includes a thermostat body 31 and a valve 32, a valve core 33 and a valve core sensing body 34 mounted on the thermostat body 31. The valve core sensing body 34 of the thermostat 3 is arranged in the air inlet cavity 11, and the valve 32 of the thermostat 3 is arranged at the inlet 21 of the jacket 2 for controlling the opening and closing of the inlet 21. The thermostat 3 is a mechanical structure, and the mixer assembly of the present application controls the opening and closing of the water circuit through a pure mechanical structure, which is reliable and durable.

[0021] Specifically, the valve core sensing body 34 contains a medium such as paraffin, which directly contacts the intercooled air and changes in volume due to temperature changes. With the change in volume of the valve core sensing body 34, the valve 32 moves up and down, thereby controlling the opening and closing of the heating water. The arrow direction in the figure is the flow direction of the hot water in the jacket 2. The opening degree of the valve 32 of the thermostat 3 is automatically adjusted according to the temperature of the intercooled air, thereby achieving automatic control of the flow of heating water. This avoids manual operation by the customer and improves customer satisfaction.

[0022] The specific working process of the mixer assembly of the present application is as follows:

[0023] When the intercooled air is >0℃, the volume of the valve core sensing body 34 of the thermostat 3 does not change, and the valve 32 is in a closed state. At this time, the heating water circuit is not open, and the mixer assembly is in a non-heating state, thereby avoiding heating of the intercooled air and improving engine performance. When the intercooled air is <0℃, the volume of the valve core sensing body 34 of the thermostat 3 decreases, and the valve 32 moves downward. At this time, the heating water circuit of the jacket 2 is open, and the mixer assembly is in a heating state, thereby effectively preventing icing of the mixer.

[0024] In specific implementation, the medium in the valve core sensing body 34 of the thermostat 3 is not limited to paraffin, and any medium whose volume can change with temperature can be used.

[0025] As shown in the drawings, Figure 2As shown, the mixer body 1 is provided with a mixed gas outlet cavity 14, which is communicated with the air inlet cavity 11, and the air after intercooling flows in from the air inlet cavity 11 and flows out from the mixed gas outlet cavity 14. The mixer body 1 is provided with a waste gas mixing cavity 13 for flowing in waste gas, which is communicated with the air inlet cavity 11, and the EGR waste gas and the air after intercooling are fully mixed in the waste gas mixing cavity 13. The mixer assembly of the application can be a diesel engine mixer.

[0026] In another embodiment, the mixer body 1 is further provided with a gas mixing cavity 12 for flowing in gas, which is communicated with the air inlet cavity 11, and the gas and the air are fully mixed in the gas mixing cavity 12. Therefore, the mixer assembly of the application can also be a natural gas engine mixer.

[0027] The mixer assembly of the application sets the jacket and the thermostat on the outer wall of the mixer body, the valve core sensing body of the thermostat is arranged in the air inlet cavity, the valve of the thermostat is arranged at the inlet of the jacket for controlling the on-off of the inlet, the thermostat can automatically control the on-off of the heating pipeline according to the temperature of the air after intercooling, effectively prevents the mixer from icing in cold weather, avoids manual operation of the customer, improves customer satisfaction, and the heating pipeline is automatically disconnected in hot weather, avoids heating the air after intercooling, and improves the performance of the engine.

[0028] In the description of the present application, unless otherwise explicitly defined, the words "arranged", "installed", "connected" and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical solution.

[0029] Although the specific embodiments of the present application are described above, those skilled in the art should understand that the described embodiments are only part of the embodiments of the present application, not all the embodiments, which are only examples, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and without any creative labor, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. A mixer assembly, characterized by, The mixer is provided with an air inlet cavity for the inflow of the intercooled air, and the outer wall of the mixer body is provided with a jacket having an inlet for the inflow of a heating medium and an outlet for the outflow of the heating medium; The mixer is provided with a thermostat, and the valve core of the thermostat is arranged in the air inlet cavity, and the valve of the thermostat is arranged at the inlet of the jacket for controlling the opening and closing of the inlet.

2. The mixer assembly of claim 1, wherein, The jacket is an independent cavity integrally formed on the surface of the mixer body.

3. The mixer assembly of claim 1, wherein, The jacket is a water jacket.

4. The mixer assembly of claim 1, wherein, The mixer body is provided with an exhaust gas mixing cavity for the inflow of exhaust gas, and the exhaust gas mixing cavity is in communication with the air inlet cavity.

5. The mixer assembly of claim 4, wherein, The mixer body is provided with a gas mixing cavity for the inflow of gas, and the gas mixing cavity is in communication with the air inlet cavity.

6. The mixer assembly of any one of claims 1 to 5, wherein, The mixer body is provided with a mixed gas outlet cavity, and the mixed gas outlet cavity is in communication with the air inlet cavity.

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